Named in honor of Dennis di Cicco, since 1974 a staff member and since 1983 an associate editor of Sky and Telescope. An imaginative and outstanding astrophotographer, he has participated in many expeditions, specifically to observe eclipses and comets, although his best-known work is probably the analemma showing the Sun from the same spot at the same mean time every few days throughout the year. Particularly meticulous and appropriately cautions in all his writings, he regularly conducts the ‘Observers Page’ column in the magazine. (M 16246) _ _.